EO相殺/en

<languages /> Multiple switching period of the start and end overlaps the EO information, and by performing the offset process.
Specifically, the sort key, except the start and end design change information of the same data | compares the EO Changeover Date, the data of one and Start EO Changeover Date, but the other Exit EO Changeover Date.
If it is different from the end date of the EO switch other, start date EO switching of one of the data does not perform the offsetting of EO.